Timeline for Converting a tachometer signal into something a microprocessor can understand
Current License: CC BY-SA 3.0
10 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jul 9, 2014 at 23:12 | vote | accept | Patrick | ||
| Jul 8, 2014 at 12:52 | answer | added | mfarver | timeline score: 5 | |
| Jul 7, 2014 at 23:49 | comment | added | Patrick | @mfarver I've done low pass filters before, that makes sense. However I havent been able to find a zener that would work, could you recommend a suitable zener diode and resistor combo that would take the 50 or so volts I have coming in down to 5? | |
| Jul 7, 2014 at 3:25 | comment | added | mfarver | Add a low pass filter and overvoltage protection (usually a zener or TVS diode) | |
| Jul 7, 2014 at 2:34 | history | edited | Dave Tweed | CC BY-SA 3.0 |
put image inline
|
| Jul 7, 2014 at 1:31 | comment | added | Patrick | Fair enough. My question was a bit open ended. I will rephrase: What should I be looking for in a schmitt trigger circuit to ensure that my voltage spikes do not harm it? Alternately, is there something I can do to eliminate those spikes? | |
| Jul 7, 2014 at 1:00 | comment | added | Ignacio Vazquez-Abrams | They can handle whatever you design them for. | |
| Jul 7, 2014 at 0:58 | comment | added | Patrick | @IgnacioVazquez-Abrams That does appear like it would do the trick. Can they handle several hundred volt spikes? | |
| Jul 7, 2014 at 0:48 | comment | added | Ignacio Vazquez-Abrams | Schmitt trigger. | |
| Jul 7, 2014 at 0:37 | history | asked | Patrick | CC BY-SA 3.0 |